All in /usr/lib/

https://aur.archlinux.org/packages/pd-vanilla/   - vanilla version (cannot rename to puredata, because on official repos is package with the same name)

https://aur.archlinux.org/packages/pd-extended/ - binary is named 'pdextended' .... I think maybe it could be pdx ?

https://aur.archlinux.org/packages/puredata-utils/ - pdsend, pdreceive

what is missing is 'cyclone', it should be installed separately, but I dont have energy for that.

install all with:

yaourt -S pd-vanilla pd-extended pd-l2ork puredata-utils

You can check for errors.